A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.
Classification: Parts for steam turbines
NSN 6110-01-303-0839
NSN 5910-00-398-0930
NSN 5950-00-285-6194
NSN 5855-00-301-1176
NSN 6130-00-776-6081
NSN 5935-01-605-0592
NSN 5999-01-424-8804
NSN 5930-01-272-9558
NSN 6105-01-459-9960
NSN 5925-01-582-0663
NSN 6620-01-435-7083
NSN 5895-01-488-5006